This plugin changes the behavior of Sass's @import directive so that
if the same sass file is imported more than once, the second import
will be a no-op. This allows dependencies to behave how most people
expect them to behave and provides a considerable performance improvement
for some sass projects.
Note: Although this plugin is maintained by compass, it can be used without compass in any Sass-based project.
Either add this line to your application's Gemfile if you have one:
gem 'compass-import-once', :require => 'compass/import-once/activate'
And then execute:
$ bundle
Or install it yourself as:
$ gem install compass-import-once
To enable in non-compass environments there's two options:
require 'compass/import-once/activate'
or you can activate it conditionally:
require 'compass/import-once'
Compass::ImportOnce.activate!
If a file must be imported a second time, you can force it by adding an exclamation mark to the end of the import url. E.g.
@import "something";
@import "something!"; // this will be imported again.